FILE - In this file photo posted on the Twitter page of Syria's al-Qaida-linked Nusra Front on April 25, 2015, which is consistent with AP reporting, Nusra Front fighters stand on their vehicles and wave their group's flags as they tour the streets of Jisr al-Shughour, Idlib province, Syria. The battle for Aleppo has gripped the world, but it is hardly the only active front across Syria. One of the next targets for the forces of Bashar Assad will probably be the heartland of rebel territory, the neighboring Idlib province. (Al-Nusra Front Twitter page via AP, File)
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